SDS Volume
Volume 20. Halogenated Benzenes, Toluenes and Phenols with Water, p 123
Source Publication
Jockers, R.; Ph.D. Dissertation, University of Bochum, Bochum, 1976.
Conditions:
Room Temp: 260.0 - 280.0 °C
Compiler:
Methodology:
The measurements were made using a high temperature, high pressure optical cell made from stainless steel with an internal stirrer. Predetermined mixtures of 1,4-difluorobenzene in water were introduced into the cell and homogenized at various temperatures and pressures. The phase transitions were observed through a sapphire window at the appropriate temperatures and pressures. Further details have been included in [1,2].
Sample Information:
- Fluka AG., Buchs, Schweiz, 99.5% pure, redistilled before use.
- Boiled with $\ce{KMnO4}$ and redistilled before use.
Measurement Errors:
Ambient temperature: ±0.5 K.
Mass concentration (m/v) (1): ±1%.
Pressure: ±2 bar.
Methodology Citations
1
Gotze, G.; Jockers, R.; Schneider, G. M.; 4th Internat. Conf. Chem. Thermodyn. IUPAC, Montpellier, Aug. 26-30, 1975, Part IV/9, 57-64.
2
Jockers, R.; Schneider, G. M.; Ber. Bunsenges. Phys. Chem. 1978, 83, 576-82.
System Components:
- 1,4-Difluorobenzene, $\ce{ C6H4F2 }$; [540-36-3] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
| $T$ (°C) | $x_{1}$ | MR1 (g/kg) | m1 (mol/kg) |
|---|---|---|---|
| 260.0 | 0.0784c | 350.1a | 3.069b |
| 270.0 | 0.0784c | 350.1a | 3.069b |
| 280.0 | 0.0784c | 350.1a | 3.069b |
(a) Calculated by the compiler.
(b) Calculated by F. W. Getzen.
(c) Reported.


